Measurement of day and night neutrino energy spectra at SNO and constraints on neutrino mixing parameters.
By Sno Collaboration. Physical Review Letters, 2002
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The Sudbury Neutrino Observatory (SNO) has measured day and night solar neutrino energy spectra and rates. For charged current events, assuming an undistorted 8B spectrum, the night minus day rate is 14.0%+/-6.3%(+1.5%)(-1.4%) of the average rate. If the total flux of active neutrinos is additionally constrained to have no asymmetry, the nu(e) asymmetry is found to be 7.0%+/-4.9%(+1.3%)(-1.2%). A global solar neutrino analysis in terms of matter-enhanced oscillations of two active flavors strongly favors the large mixing angle solution.
Subfields: Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/6a782c33b258d891698444a2c81c098990947f43
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In Nuclear and High Energy Physics
Citations in the corpus
- Physics at Super B Factory (2004, methodology): “The neutrino oscillation was also confirmed in solar neutrinos, which come from νe-νµ mixing, by both the Super-Kamiokande [109] and SNO [110,111] experiments.”
- Proton stability in grand unified theories, in strings and in branes (2006, background): “The solar neutrino and the atmospheric neutrino data give [411, 412, 413] ∆m(2)sol = (5.”
- Constraints on flavor-diagonal non-standard neutrino interactions from Borexino Phase-II (2019, positive): “For B neutrinos, the day-night asymmetry for LMA-MSW has been predicted to be a few percent [61, 62], and this has been confirmed experimentally by Super-Kamiokande [63, 64] and SNO [65, 66].”